Properly inserting cross-references for supra and infra citations will allow you to easily update all of these citations at any time, even after you have added numerous additional footnotes.
This is a much more efficient method of updating footnote numbers in supra and infra citations than manually changing each of them individually.
Inserting a cross reference:
Updating all cross references in a document:
Non-breaking spaces should be used between the periods in ellipses ( . . . ), after section symbols (§), and after volume numbers in journal and book citations. Non-breaking spaces ensure that the text remains together on one line.
On Mac: CTRL + SHIFT + SPACE
On PC: OPTION + SPACE